Calculate the change in Gibbs free energy for each of the following sets of AHorxn, ASorxn, and T. (Assume that all reactants and products are in their standard states.) Part A AHorxn=-84kJ, ASorxn--157J/K, T=302K Express your answer as an integer. Part B AHorxn=-84kJ, ASorxn=-157J/K, T=860K Express your answer as an integer. Part C AHorxn=84kJ, ASorxn--157J/K, T=302K Express your answer as an integer. Part D AHorxn=-84kJ, ASorxn=157J/K, T=398K Express your answer as an integer.